<!DOCTYPE html>
<html>
<head>
    <base href="http://example.com/sample/">
    <meta charset="UTF-8">
    <title>Audio Elements - Spider HTML Parser</title>
</head>
<body>

<!-- src -->
<audio src="relative/src"></audio>
<audio src="/absolute/src"></audio>
<audio src="https://audio.example.com/external/audio/src"></audio>

<!-- Ignored: -->
<audio/>

</body>
</html>